The official National Weather Service forecast for Montgomery — 38.6626°N, 87.0461°W, 4.3 miles from I-69. Forecasts here are written by NWS IND, this county’s forecast office.
| Daviess County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 39 | 44 | 55 | 67 | 76 | 84 | 87 | 86 | 81 | 69 | 55 | 44 | 66 |
| Avg low °F | 22 | 25 | 34 | 43 | 54 | 62 | 66 | 63 | 56 | 45 | 34 | 27 | 44 |
| Precip in | 3.5 | 3.0 | 4.2 | 5.2 | 5.4 | 5.0 | 4.7 | 3.2 | 3.5 | 3.6 | 3.4 | 3.7 | 48.4 |
1996–2025 normals for Daviess County — the climate division Montgomery sits in. All-time county record high 106.0°F (2012-06-29); record low -22.7°F (1994-01-19). Source: NOAA / National Weather Service.